Ask question

Ask question

All categories

3 years ago

13

Alma brought pens of green and blue color. 35% of pens are blue. If she brought a total of 70 pens, how many green pens did she

have?

1 answer:

jeyben [28]3 years ago

7 0

Answer:

24.5% are green

Step-by-step explanation:

You might be interested in

A rectangle has the area of 60 inch2. What can be its dimensions? Copy and fill in the chart.

barxatty [35]

Answer:

2*30 10*6 1*60 20*3

Step-by-step explanation:

Find 2 numbers that multiplied have a result of 60

8 0

3 years ago

Read 2 more answers

There is a a circle whose circumference is 34.54 cm.

Naily [24]

Answer:

$\huge\boxed{Diameter=11cm}$

Step-by-step explanation:

Important information:

Circumference of a circle= $\pi*diameter$

Method:

To work out the diameter, we would need to divide the circumference of 34.54 by pi, which in this case is 3.14, this gives us 11cm. This is because we are simply rearanging the formula of the circumference of a circle to make the diameter the subject.

Step By Step:

1) Rearange the formula to make the diameter the subject.

$diameter=\frac{circumference}{\pi}$

2) Divide 34.54 by 3.14( $\pi$ ).

$34.54/3.14=11cm$

5 0

2 years ago

Simplify.<br> (w5)<br> I need this ASAP please

Ilya [14]

I’m pretty sure it’s w^25

5 0

3 years ago

Three pith balls supported by insulating threads hang from a support. We know that ball X is positively charged. When ball X is

Tamiku [17]

Answer:

B. z has a negative charge

Step-by-step explanation:

7 0

3 years ago

ANEK [815]

See below for the proof of the equation $\frac{ax + by}{x + y} - \frac{ax - by}{x - y}= 2(a - b)$

<h3>How to prove the equation?</h3>

The equation is given as:

$\frac{ax + by}{x + y} - \frac{ax - by}{x - y}= 2(a - b)$

Take the LCM

$\frac{(ax + by)(x - y) -(ax - by)(x + y)}{(x + y)(x - y)}= 2(a - b)$

Expand

$\frac{ax^2 - axy + bxy - by^2 -ax^2 - axy + bxy + by^2}{(x + y)(x - y)}= 2(a - b)$

Evaluate the like terms

$\frac{-2axy + 2bxy }{(x + y)(x - y)}= 2(a - b)$

Rewrite as:

$\frac{-2axy + 2bxy }{x^2 - y^2}= 2(a - b)$

Factorize the numerator

$\frac{2(a - b)(x^2 - y^2)}{x^2 - y^2}= 2(a - b)$

Divide

2(a - b)= 2(a - b)

Both sides are equal

Hence, the equation $\frac{ax + by}{x + y} - \frac{ax - by}{x - y}= 2(a - b)$ has been proved

Read more about equations at:

brainly.com/question/2972832

#SPJ1

5 0

2 years ago